An overview of 2025 Chinese survey by fishery research vessel "Song Hang" in the NPFC convention area

In 2025, the Chinese fishery research vessel Song Hang embarked on its fifth year of scientific surveys by Shanghai Ocean University in the Northwest Pacific Ocean. This document provides an overview of the 2025 survey. The improved survey program in 2025 continues to cover fisheries resources, larval and juvenile stages of marine species, plankton, and environmental surveys, consistent with previous years. Based on the five-year survey, we are conducting a series of research studies to support the stock assessment and management of Chub mackerel, Blue mackerel, Japanese sardine, and Neon flying squid in NPFC. Research areas include biological parameters (such as growth and mortality), standardization of abundance indices, biodiversity, and ecosystem modeling. The resulting outputs will be submitted to specific working group or SSC of each priority species.